Springfield Armory SAINT Edge ATC
Springfield Armory, Inc. · Sniper Rifle · In Production · 2022
Also known as: SAINT Edge ATC, SA SAINT Edge ATC, STA918223B
Overview
The Springfield Armory SAINT Edge ATC (Accurized Tactical Chassis) is a precision-focused AR-15 rifle chambered in .223 Wylde, designed to deliver sub-MOA accuracy from a factory semi-automatic platform. The ATC's defining feature is its monolithic lower receiver and handguard system, which ensures the barrel, barrel nut, and gas system are completely free-floated with zero contact to the chassis structure. This one-piece design eliminates the flex points and harmonics disruption inherent in traditional two-piece AR receiver/handguard combinations. The 18-inch Ballistic Advantage Melonite-treated barrel with a 1:7 twist is optimized for heavier match-grade bullets, and the .223 Wylde chamber allows safe and accurate firing of both .223 Remington and 5.56 NATO ammunition with improved accuracy over standard 5.56 chambers. The rifle ships with Springfield's proprietary flat-faced modular match trigger and a B5 Systems Enhanced SOPMOD stock.
Specifications
| Weight (empty) | 4309 g (152.0 oz) |
| Weight (loaded) | 4800 g (169.3 oz) |
| Overall Length | 959 mm (37.76") |
| Barrel Length | 457 mm (17.99") |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Flat Faced |
| Magazine Capacity | 20 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 920 m/s (3018 fps) |
| Muzzle Energy | 1904 J (1404 ft·lbf) |
| Effective Range | 600 m (656 yd) |
| Maximum Range | 3600 m (3937 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 178 mm (7.01") |
| Frame Material | Aluminum Alloy |
| Barrel Material | Melonite Treated Steel |
| Stock Material | Polymer |
| Finish | Anodized Black |
Calibers
- .223 Wylde · primary — also known as .223 Wylde, 5.56/.223 Wylde
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety, Firing Pin Safety
- Features: Free Floating Barrel, Monolithic Chassis, Match Grade Barrel, Picatinny Rail, Adjustable Stock, Flat Face Trigger, Sub Moa Guaranteed, M-Lok Handguard
Variants
- SAINT Edge ATC Elite — Enhanced
Base model
Production
Production years: 2022-present
In production by Springfield Armory in Geneseo, Illinois.
Origin
Country of origin: United States
Notes
The .223 Wylde chamber is a hybrid design that splits the difference between .223 Remington and 5.56 NATO chamber dimensions, providing the accuracy advantages of the tighter .223 Remington chamber while maintaining full compatibility with higher-pressure 5.56 NATO ammunition. Springfield guarantees sub-MOA accuracy with three-shot groups using match-grade ammunition. The monolithic chassis eliminates the traditional junction between lower receiver and handguard, creating a rigid, single-piece platform. The ATC Elite variant adds a Coyote Brown Cerakote finish and 30-round magazine. At approximately 9.5 pounds, the ATC is heavier than standard SAINT Edge models, reflecting the mass of the monolithic chassis.
Background
The SAINT Edge ATC represents Springfield Armory's most accuracy-focused AR-15, with its monolithic chassis design borrowed from precision competition rifles to guarantee factory sub-MOA performance.